| Year | Value | | 2022 | 1,916,671 | | 2021 | 1,826,593 | | 2020 | 1,756,513 | | 2019 | 1,697,022 | | 2018 | 1,647,217 | | 2017 | 1,609,587 | | 2016 | 1,578,574 | | 2015 | 1,546,512 | | 2014 | 1,514,955 | | 2013 | 1,485,036 | | 2012 | 1,453,466 | | 2011 | 1,422,416 | | 2010 | 1,391,573 | | 2009 | 1,357,516 | | 2008 | 1,317,712 | | 2007 | 1,274,940 | | 2006 | 1,231,874 | | 2005 | 1,190,483 | | 2004 | 1,150,186 | | 2003 | 1,111,821 | | 2002 | 1,076,473 | | 2001 | 1,040,992 | | 2000 | 1,004,039 | | 1999 | 966,440 | | 1998 | 927,919 | | 1997 | 880,911 | | 1996 | 827,665 | | 1995 | 785,757 | | 1994 | 755,965 | | 1993 | 732,533 | | 1992 | 713,689 | | 1991 | 695,198 | | 1990 | 676,418 | | 1989 | 656,955 | | 1988 | 641,333 | | 1987 | 626,321 | | 1986 | 611,098 | | 1985 | 595,953 | | 1984 | 580,917 | | 1983 | 566,047 | | 1982 | 551,282 | | 1981 | 534,553 | | 1980 | 516,744 | | 1979 | 499,878 | | 1978 | 484,085 | | 1977 | 468,633 | | 1976 | 451,263 | | 1975 | 435,579 | | 1974 | 423,658 | | 1973 | 413,370 | | 1972 | 403,843 | | 1971 | 395,343 | | 1970 | 387,605 | | 1969 | 380,912 | | 1968 | 375,364 | | 1967 | 370,525 | | 1966 | 365,487 | | 1965 | 357,776 | | 1964 | 347,590 | | 1963 | 338,208 | | 1962 | 329,542 | | 1961 | 321,347 | | 1960 | 314,897 |
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